[sr-dev] [kamailio/kamailio] modparam("ims_ipsec_pcscf", "ipsec_preferred_ealg", "aes-cbc") doesn't take effect (Issue #4211)

Hampas-J created an issue (kamailio/kamailio#4211)

Hi,

I'm using "version: kamailio 6.0.0-dev2 (x86_64/linux) 0da3eb" to setup IMS and configured modparam("ims_ipsec_pcscf", "ipsec_preferred_ealg", "aes-cbc") to encrypt ESP payload, I can make a call, but I see the ealg is still null in SIP 401 Unauthorized message and ESP payload is not encrypted:

<img width="211" alt="Image" src="https://github.com/user-attachments/assets/f0d75ff0-1e40-429a-9511-da30cf6381fe" />

Is there any configuration missing?